82890 Type 340-A HSS Black Oxide 118Â degree Split Point NAS 907A Jobber Length Drill Bit (6 pack) 2.438" ID Boston Gear’s internal gears are

Boston Gear’s internal gears are spur gears turned "inside out

When pressurized

This assembly offers the ability to filter

This eliminates the old practice of adding drops of oil into the tool periodically

the SNATFB has an eccentric locking bearing insert

82890 Type 340-A HSS Black Oxide 118Â degree Split Point NAS 907A Jobber Length Drill Bit (6 pack) 2.438" ID Boston Gear’s internal gears areType 340 A 118 split point is self centering for reduced thrust and easier penetration Black oxide finish for increased wear resistance and added lubricity Manufactured to NAS 907A aerospace specification General purpose geometry with 118 split point for drilling in a wide range of drilling operations and materials. Click Here for product catalog Proudly Manufactured in the U. S. A